Helicoverpa armigera, the cotton bollworm, is a major pest of cotton and other crops, including maize and tomatoes. The larvae feed on the plant's reproductive structures, causing significant damage to crops and reducing yields. H. armigera is known for its wide host range and ability to develop resistance to insecticides. Integrated pest management strategies, including the use of resistant crop varieties, biological controls, and targeted insecticides, are employed to manage H. armigera populations and protect crops.